Airworthiness Directives (ADs)

Aviation Industry

CAA-2021-06-011

The aircraft owner or operator shall comply with Airworthiness Directives issued by the CAA or the aeronautics authority of the State of Design (SoD) of the aviation products, appliances and parts, and take all necessary actions thereto.

Issue Date: 2021/07/05

Applicability: General Electric Company GEnx-1B64, GEnx-1B64/P1, GEnx-1B64/P2, GEnx-1B67, GEnx-1B67/P1, GEnx-1B67/P2, GEnx-1B70, GEnx-1B70/75/P1, GEnx-1B70/75/P2, GEnx-1B70/P1, GEnx-1B70/P2, GEnx-1B70C/P1, GEnx-1B70C/P2, GEnx-1B74/75/P1, GEnx-1B74/75/P2, GEnx-1B76/P2, GEnx-1B76A/P2 model turbofan engines with stages 6-10 compressor rotor spools in the high-pressure compressor (HPC) assembly with the following part numbers (P/N) installed: (i) P/N 2357M30G01, P/N 2357M30G02, P/N 2439M35G01, P/N 2439M35G02, or P/N 2445M40G02, all serial numbers (S/Ns); (ii) P/N 2610M90G01 with the S/Ns listed in paragraph 4., APPENDIX–A, Table 1 of the GE GEnx-1B Service Bulletin (SB) 72-0472 R02, dated November 5, 2020 (GEnx-1B SB 72-0472); and (iii) P/N 2628M56G01 with the S/Ns listed in paragraph 4., APPENDIX–A, Table 2 or Table 3 of GEnx-1B SB 72-0472. (2) GEnx-2B67, GEnx-2B67/P, GEnx-2B67B model turbofan engines with the following stages 6-10 compressor rotor spools P/Ns installed: (i) P/N 2357M30G02, P/N 2439M35G02, or P/N 2445M40G02, all S/Ns; (ii) P/N 2340M36G01 with S/Ns listed in paragraph 4., APPENDIX–A, Table 1 of GE GEnx-2B SB 72-0415 R02, dated November 5, 2020 (GEnx-2B SB 72-0415); and (iii) P/N 2628M56G01 with S/Ns listed in paragraph 4., APPENDIX–A, Table 2 or Table 3 of GEnx-2B SB 72-0415.

Model Number: General Electric Company GEnx-1B and -2B serials turbofan engines.

CAA AD Number: CAA-2021-06-011

Aeronautics Authority of Original AD: FAA

Original AD Number: 2021-11-07

Effective Date: 2021/07/30

Subject: This AD requires inspection of the stages 6-10 compressor rotor spool and, depending on the results of the inspection, replacement of the stages 6-10 compressor rotor spool.

Reference Publications (Revision/ATA/SB): ATA 72. Ref. GE GEnx-1B Service Bulletin (SB) 72-0472 R02, dated November 5, 2020. and GE GEnx-2B SB 72-0415 R02, dated November 5, 2020.

Remarks

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